| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Ischnacanthida
Taxonomy
Ischnacanthida was named by Berg (1940). It is not extant.
It was assigned to Acanthodii by Denison (1979); and to Acanthodii by Janvier and Riglos (1986), Sepkoski (2002).
It was assigned to Acanthodii by Denison (1979); and to Acanthodii by Janvier and Riglos (1986), Sepkoski (2002).
Subtaxa
Synonymy list
| Year | Name and author |
|---|---|
| 1940 | Ischnacanthida Berg |
| 1979 | Ischnacanthida Denison |
| 1986 | Ischnacanthida Janvier and Riglos |
| 2002 | Ischnacanthida Sepkoski |
Is something missing? Join the Paleobiology Database and enter the data
|
|
If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
Or. †Ischnacanthida Berg 1940
show all | hide all
G. †Atopacanthus Hussakof and Bryant 1918
hide
†Atopacanthus dentatus Hussakof and Bryant 1918
†Atopacanthus juvai Hairapetian and Burrow 2016
†Atopacanthus peculiaris Hussakof and Bryant 1918
Diagnosis
No diagnoses are available
Measurements
No measurements are available
|
|
||||
|
|
||||
|
|||||
|
|
||||
| Source: o = order, c = class, subp = subphylum | |||||
| References: Carroll 1988, Aberhan et al. 2004, Whittington et al. 1997 | |||||
Age range: base of the Ludfordian to the top of the Middle Famennian or 425.00000 to 365.20000 Ma
Collections (13 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Ludlow | China (Yunnan) | Poracanthodes qujingensis (27796) | |
| Ludfordian | China (Junnan) | Poracanthodes qujingensis (182558) | |
| Ohesaare | Estonia (Saare) | Poracanthodes punctatus (193837) | |
| Lochkovian | Russian Federation | Poracanthodes menneri (90329) | |
| Early/Lower Devonian | Bolivia | Ischnacanthida indet. (25592) | |
| Late/Upper Givetian - Early/Lower Frasnian | Germany (North Rhine-Westphalia) | Atopacanthus sp. (226077 226078) | |
| Early/Lower Frasnian | Russian Federation | Atopacanthus sp. (90343) | |
| Frasnian | USA (New York) | Atopacanthus dentatus (238194 238195) Atopacanthus dentatus, Atopacanthus peculiaris (238193) | |
| Famennian | Iran | Atopacanthus juvai (238196) | |
| Middle Famennian | Russian Federation (Oryol Oblast) | Ischnacanthida indet. (226045) |